International Journal of Automotive Technology

The Korean Society of Automotive Engineers (한국자동차공학회)
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DETECTION OF INTERFACIAL CRACK LENGTH BY USING ULTRASONIC ATTENUATION COEFFICIENTS ON ADHESIVELY BONDED JOINTS

  • Chung, N.Y. (Department of Mechanical Engineering, Soongsil University) ;
  • Park, S.I. (Department of Mechanical Engineering, Graduate School, Soongsil University)
  • Published : 2004.12.01
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Abstract

In this paper, an interfacial crack length has been detected by using the ultrasonic attenuation coefficient on the adhesively bonded double-cantilever beam (DCB) joints. The correlations between energy release rates which were investigated by experimental measurement, the boundary element method (BEM) and Ripling's equation are compared with each other. The experimental results show that the interfacial crack length for the ultrasonic attenuation coefficient and energy release rate increases proportionally. From the experimental results, we propose a method to detect the interfacial crack length by using the ultrasonic attenuation coefficient and discuss it.

Keywords

References

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